Rockwell Automation 1770, D17706.5.16 Ref Mnl DF1 Protocol Command - Manual (Page 163)

9–25 Diagnostic Counters
Publication 1770Ć6.5.16 - October 1996
Cat. Nos. Link Pages
1784ĆKR DH485 9-3
1784ĆKT, ĆKT2 DH+ 9-25
1784ĆKT and 1784ĆKT2 DH+ Diagnostic Counters
This counter byte Counts the number of
0
Times received ACKs with a bad CRC.
1 Timeouts expired with no ACK received.
2 Transmit retries exhausted.
3 NAK or illegal protocol operations received.
4 NAKs - bad LSAP received.
5 NAK - no memory received.
6 Received ACKs/NAKs that were too short.
7 Received ACKs/NAKs that were too long.
8 Times something other than an ACK/NAK received.
9 Duplicate tokens found.
10 Token pass timeouts.
11 Token pass retries exhausted.
12 Claim token sequence entered.
13 Tokens claimed.
14 Bad CRC in received frame.
15 NAKs sent - illegal protocol operation.
16 NAK sent - bad LSAP.
17 NAK sent - no memory.
18 Received frames that were too short.
19 Received frames that were too long.
20 ReĆtransmissions received of a frame.
21 Received frames aborted (line noise).
22, 23 Messages successfully sent (low byte first).
24, 25 Messages successfully received (low byte first).
26, 27 Commands successfully sent (low byte first).
28, 29 Replies successfully received (low byte first).
30, 31 Commands successfully received (low byte first).
32, 33 Replies successfully sent (low byte first).
34 Replies that could not be sent (low byte first).
35 Number of active nodes.
1784 Cat. Nos.